Reverse lock slider



Nov. 11, 1941. D .QIARmIsKY 2,262,188

REVERSE LOCK SLIDER Filed Sept. 2, 1939' INVENTOR ATTORNEY Patented Nov. 11, 1941 2,262,188

2 UNITED STATES PATENT OFFICE REVERSE LOCK SLIDEE.

Davis Marinsky, Bronx, N. Y., assignor to Whitehall Patents Corporation, Bronx, N. Y., a .cornotation of New Yorlr Application September 2, 1939, Serial No. 293,182

ment,

7 Claims. (01. 24-2055) This invention relates to sliders for separable as to prevent crushing of the slider when subject fastener stringers and particularly to what is to laundering.

commonly referred to as reverse locking sliders adapted for use on various types of merchandise where the pull is normally hanging downwardly and protruding beyond the flared or doubled channeled end of the slider body such for example, as stringers as applied to leggings. More particularly the invention relates to sliders hav ing cooperating means between the pull and the '10 upper surface of e p wa a d extending f om slider for retaining the pullagainst accidental the wide end portion M to a pivot recess l6 displacement when in locked position. The novel formed between the bar and a hook member I1, features of the invention will be best understood the latter being normally open and adapted to from the following disclosure and annexed drawbe bent over in securing the pivot ill of the pull ing in which certain embodiments of the invenl l9 against displacement from the slider. Suflition are disclosed and in which the separate parts cient clearance is provided for the pivot I-B in are designated by suitable reference characters in the recess E o p o e Swinging movement each f th views, a d i whi h; of the pull into a position parallelingthe top wall Fig. 1 is a longitudinal sectional view through ll of the Slider. a slider showing one adaptation of the invention. .The pull is re e s d o ap rt r d to r ce v th Fig. 2 is a view similar to Fig. 1 showing another adaptation of the invention.

Fig. 3 is a view similar to Figs. 1 and 2 showing a further adaptation of the invention.-

' Fig. 4'is a plan view of a slider showing another adaptation of the invention, and

Fig. 5 is a partial sectional view substantially on theline 5-5 of Fig. 4.

In reverse locking sliders of the type and kind under consideration, considerable diiiiculty has lmen experienced in maintaining the pin or other looking arrangement commonly employed upon the pull of a slider against accidental displaceand this is especially true when the fastener is used upon leggings which are subjected to stresses and strains tending to open the slider and also subjected to the blows or strains occasioned by running or walking. It is the purpose of my invention to provide in conjunction with the slider and pull means for retaining the pull in locked position on the slider at least suflicient- 1y to care for the normal stresses or strains tending to separate the stringers employed, while at the same time permitting movement into unlocked position if the stringers are subjected to In the embodiment of my invention as disclosed in Fig. 1 01' the drawing, to represents the slider body having a bottom wall H, a top wall l2, a crosshead I3 at the wide end portion [4 of the slider forming the usual diverging channels at I the wide end.

A long bar i 5 centered longitudinally of the bar l5 as will be apparent but the end wall 20 of this recess is disposed adjacent the end' l5a of the bar l5, so as to move freely thereover in frictionally passing over a spring actuated catch pin 2|. The spring 22 of the catch pin 2| is housed within the bar IS, the pin 2| having a guide rod 23 extending longitudinally through the bar [5 with a head 24 at one end limiting outward movement of the pin. The pull l9 includes, in

the construction shown, an apertured finger grip portion I91: and also a protruding lock pin 25 which is adapted to extend through an opening 25a in the top wall l2 to enter the channel 26 or the slider to engage a fastener stringer arranged so therein-in retaining the slider against longitudinal movement.

The outer end excessive strains so as to prevent the destruction of the stringer tapes or fastener links which might otherwise occur if a positive lock were provided. Further, it is a feature of my invention to construct the slider so as to provide throughout the'le'ngth of the wall thereof to which the pull isattached a. reenforcingbar the upper surface of which is disposed above the upper surface of hand grip portion 30-of a pull 3|, the

the pull when the latter is in locked positionvsov The lock pin or element 25 extends into the channel 26 when the pull I9 is in its locked position as indicated at Fig. 1 being held in this position by the spring catch pin 2 i.

of the catch pin is rounded to permitiorcible movement of. the finger piece into raised unlocked position when it is desired to manually operate the slider of the stringers.

In Fig. 2 of the drawing, I have shown a slight modification. of the construction shown in Fig. 1 which simply consists in forming an indent or recess 21 and the outer end'of the bar 28 similar to the bar l5 to receive a spring actuated pin 29 yieldably supported in the somewhat enlarged spring act'- ing upon the pin 29 being shown at 32. It will be apparent that the pin 29 rides over the end of the bar 28 in cam-like fashion to enter the recess 21.

lock element of the pull 34, otherwise the structure as shown in Fig. 2 is the same as that of Fig. 1.

In Fig. 3 of the drawing, I have shown another adaptation of the invention which consists in substituting for the recess 21 a rounded cam sur-- face 35 on the end of the bar 36 similar to the bar l of Fig. 1 and arranging a rounded end wall3l on a pull 38 so as to frictionally engage the surface 35 in holding the pull against displacement. The pivot of the pull 38 is shown at 39, and at 40 is shown the pin lock or other element for engaging one of the stringers. The structure shown in Fig. 3 is otherwise similar to the structure shown in Fig. 1.

In all the forms of construction shown and above described, it will appear that the engagement of the pull with the slider in retaining the same against accidental displacement was located an appreciable distance from the pivot of the pull as compared with the location. of the locking element with respect thereto. This produces a strong looking or retaining engagement of the pull with the slider in resisting the normal stresses or strains tending to unlock the slider,

while at the same time providing movement of the pull into inoperative position should 'the stringers be subjected to excessive strains which might otherwise destroy or render the fastening thereof. In this instance the pivot forming means and the yieldable pull engaging means would be arranged in the reverse positions on the protruding bar of the slider, and the position of the aperture in th slider for receiving the lock element of the pull might be altered slightly, but the structure and operation of the parts would otherwise be the same. It will also be apparent that my improved structure is adapted for use in connection with any type of slider construction of suitable metallic or thermoplastic materials.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is: I

1. A reverse lock slider for separable fasteners comprising a channeled slider body having spaced walls joined at one wide end in a connecting web, one wall of the slider having a. bar extending centrally and longitudinally thereof, a pull pivotally coupled to said wall of the slider and to the bar thereon adjacent the other narrow end thereof, said pull having an apertured portion adapted to encompass th bar and to provide for flat arrangement of the pull upon the slider wall below the outer surface of said bar, a lock element on the pull for entering the channel of the slider when the pull is arranged horizontally upon said wall of the slider, interen- 44 is pivoted to the slider body as seen at 46 in substantially the same manner as in the other forms of construction shown, and a lock element 41 is provided adjacent the pivot 46 in position to enter the'channel of the slider. With this construction, the end wall 48 of the apertured portion of the pull which receives the bar 4| is in spaced relation to the outer end of the bar, the locking engagement being dependent upon the members passing over the outer surfaces of the fins 43.

While I have indicated my improved lock structure in connection with one general type or shapeof pull, it will be understood that any desired design of pull may be employed, the important feature being that the mounting end of the pullbe fashioned to engage the protrudingbar or mounting member of the slider in the firm and yet yieldable manner above described. In each of the-modifications of the mounting end structure of my locking pull,,a cam-like enagement is provided between the pull and the mounting bar of the slider, the engaging portions being fashioned in a manner to'permit disengagement thereof when excessive stress is applied to the lock element of the pull while in the locked position on a fastener stringer.

The pull retaining means has been described in the specification and shown in the drawing as particularly adapted for use on a reverse looking slider or in other words, on a slider having a. pull adapted to extend in the direction of and beyond the wide .end of the slider when in the gaging means on the pull and said bar for retaining the pull in a horizontal locked position against accidental displacement, and said interengaging means involving a resiliently supported pin movable longitudinally of said bar and adapted to yieldably engage said pull at the end of said apertured portion thereof.

2. A reverse lock slider for separable fasteners comprising a channeled slider body having spaced walls joined at one wide end in a connecting web, one wall of the slider having a bar extending centrally and longitudinally thereof, a pull pivotally coupled to said wall of the slider and to the bar thereon adjacent the other narrow end thereof, said pull having an aper-' ientlysupported in said pull and a cam portion on the end of said bar.

3. In combination with a slider for separable fasteners, of a reverse locking pull, means pivoting the pull to the narrow end of the slider to,

extend longitudinally of one wall thereof inthe direction of the wide end of the slider, the pull having a lock element projecting into the slider locked position. It wfll, of course, be apparent body when the pull is arranged upon said wall, cooperating means at the wide end of the slider and on the pull and said wall of the slider for frictionally retaining the pull in locked position and against accidental displacement when arand a recessed portion adapted to be engaged by the pin.

4. A reverse lock slider for separable fasteners comprising a channeled body having spaced wallsjoined at one wide end in a connecting web, a

lock pull part, means on one wall of the slider adjacent the other narrow end thereof for pivotallysupporting one end of the pull in connection with said wall, the pull having a lock element extending into the channel on the slider when the pull is arranged upon said wall with-the free 'finger end portion of the pull extending in the direction of the wide end of the slider, a pull named means comprising a resiliently supported pin on one of said parts, the pull pivot and last named part being united in a bar extending 1ongitudinally of said wall of the slider, and the pull part being recessed to receive said bar.

5. In combination with a slider for separable fasteners, of a lock pull movably coupled with the slider,a lock element on the pull adapted to enter the slider when the pull is in locked position, and an element yieldably supported on and movable longitudinally with respect to the pull to engage the slider when in locked position to retain the pull against accidental displacement.

6. A reverse lock slider tor separable fasteners comprising a channeled slider body having spaced walls joined at one wide end in a connecting web, one wall of the slider'having a. bar part extending centrally and longitudinally thereof, a pull part pivotally coupled to said wall of the slider adjacent the other narrow endthereof, said pull receiving the bar to provide for fiat arrangement of the pull upon the slider wall below the outer surface of said bar, a lock element on the pull for entering the channel of the slider when the pull is arranged horizontally upon said wall of the slider, interengaging means on the pull and said bar for retaining the pull in a horizontal locked position against accidental displacement, and said interengaging means comprising a pin resiliently supported on one of said parts for movement longitudinally thereof and adapted to yieldably engage a cam surface on the other of said parts.

7. In combination with a reverse lock slider for separable fasteners employing a movable finger piece including a locking element for retaining the slider in locked position, of an element yieldably supported on the slider for movement longitudinally of said slider, said element cooperating with the pull when in locked position to retain the pull against accidental displacement.

DAVIS MARINSKY. 

